CN103882895A - Intelligent energy-saving loader - Google Patents
Intelligent energy-saving loader Download PDFInfo
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- CN103882895A CN103882895A CN201210554449.3A CN201210554449A CN103882895A CN 103882895 A CN103882895 A CN 103882895A CN 201210554449 A CN201210554449 A CN 201210554449A CN 103882895 A CN103882895 A CN 103882895A
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- intelligent controller
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- loader
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Abstract
The invention discloses an intelligent energy-saving loader comprising a frame, a power mechanism, a driving mechanism and a control mechanism. A drive cab is arranged in the middle of the frame, a spading mechanism is arranged on one side of the drive cab, the power mechanism is mounted on the other side of the drive cab, an electro-hydraulic shifting gearbox, the driving mechanism and a steering hydraulic mechanism are arranged at the bottom of the frame, and the frame is provided with wheels. The intelligent energy-saving loader is characterized in that the spading mechanism is provided with a load sensing hydraulic mechanism and the frame is further provided with an electric engine and an intelligent controller thereof; the intelligent controller is connected with the load sensing hydraulic mechanism and an automatic shifting control mechanism; the automatic shifting control mechanism controls the electro-hydraulic shifting gearbox; the intelligent controller is connected with and controls a variable pump solenoid valve to regulate displacement of a variable pump. The intelligent energy-saving loader is reasonable in power flow distribution, can be set into engine light-load working mode or heavy-load working mode, is high in spading drive, quick to load, high in economic efficiency and work efficiency and excellent in overall performance.
Description
Technical field
The invention belongs to loader technical field, particularly relate to Intelligent energy-saving loading machine.
Background technology
At present, loader, as engineering machinery, should travel and carry out again loading operation.The power of its motor, a part drives traveling mechanism (power transmission shaft, vehicle bridge, wheel) by fluid torque-converter and gearbox, realizes loader and travels, and another part drives hydraulic jack by hydraulic oil pump, realizes and turning to and loading work.
In the time that loader is worked, one side is advanced, and scraper bowl shovels dress material simultaneously, its spading mechanism oil pump is just often worked together with torque-converters, and the power that spading mechanism oil pump consumes accounts for the 40-60% of engine power, so torque-converters adopts Partial Power to mate with motor.When loader is in the time transporting operating mode, operating point is in the governor control characteristics of the motor of being everlasting, and engine power performance and economy reduce.
The transmission efficiency of hydraulic power is lower in addition, especially runs into heavily loaded time, and the transmission efficiency of fluid torque-converter declines to a great extent on the contrary, and operating efficiency is reduced, and has caused the waste of the energy.For this situation, generally all improve torque converter and efficient district scope by design double pump wheel, two guide wheel, two turbines etc., improve transmission efficiency.The advantage of this method is that simple to operate, transmission efficiency improves, but not from the inefficient problem of the heavily loaded underdrive of basic solution, and fault rate is high.Passing through of also having increases the gear number of power-shift transmission solves, but after having increased gear number, constantly handles shift handle scatter operation person's notice because of needs, affect operating efficiency, and transmission efficiency raising is limited.
The traditional hydraulic system of loader adopts Constant Pump System.Steering and spading mechanism mainly adopt two to overlap independently hydraulic system (also have part system to adopt interflow form, steering and work system are collaborated by pressure-gradient control valve), and system all adopts gear pump fuel feeding, belongs to valve control quantitative system.System architecture is simple, price is lower, reliability is high, but the inefficiency of system, oil temperature is higher, operability is poor.Because two constant displacement pumps are by gearbox power taking, as long as engine speed is certain, two pumps all provide constant flow.When the fuel supply flow rate of pump takes more than turning to work system, remainder only has by overflow valve and flows back to fuel tank, causes larger energy loss, and the oil temperature of system is raise.When loader does not turn to or when not operation, the fluid of two systems carries out low pressure and mass flow off-load by steering gear and banked direction control valves meta respectively.Although the pressure unloading of pump is the flow losses of pipeline and valve, compare operating pressure much smaller, because two pumps are still delivery fuel feeding, therefore the off-load of system loss is still very important.
Summary of the invention
The present invention solves the technical problem existing in known technology, and a kind of Intelligent energy-saving loading machine is provided.
The object of this invention is to provide a kind of loader based on Based Intelligent Control, this loader dynamic property and good economy performance, efficient energy-saving, simple to operate laborsaving, the general technical level of raising loader.
The present invention takes following technical scheme.
Intelligent energy-saving loading machine, comprise vehicle frame, actuating unit, transmission mechanism, controlling organization, there is driver's cabin the middle part of vehicle frame, in a Ce You spading mechanism of driver's cabin, opposite side is provided with actuating unit, electric liquid manual transmission is arranged at the bottom of vehicle frame, transmission mechanism and steering hydraulic mechanism, vehicle frame is equipped with wheel, be characterized in: load sensing hydraulic mechanism is equipped with in spading mechanism, vehicle frame is equipped with electric-control motor and intelligent controller thereof, intelligent controller connected load sensing hydraulic mechanism, self shifter controlling organization, self shifter controlling organization control electricity liquid automatic shifting transmission gear box, intelligent controller connects control variables pump electromagnetic valve regulated variable pump delivery.
The present invention can also adopt following technical measures.
Described Intelligent energy-saving loading machine, is characterized in: intelligent controller connecting engine underloading, heavily loaded mode of operation selector, intelligent controller panel is provided with underloading, heavily loaded mode of operation selector switch.
Described Intelligent energy-saving loading machine, is characterized in: the boom cylinder of spading mechanism is equipped with pressure sensor, and intelligent controller Bonding pressure sensor judges loader active section of living in by measuring oil cylinder working-pressure.
Described Intelligent energy-saving loading machine, be characterized in: transmission mechanism is selected torque-converters and electric liquid automatic shifting transmission gear box, taking secondary speed, engine speed as controlling parameter, by intelligent controller, electric liquid automatic shifting transmission gear box is carried out to self shifter control, make torque-converters in efficient state work.
Described Intelligent energy-saving loading machine, be characterized in: intelligent controller panel is provided with gearshift mode selection switch, manual shift pattern is by the gearshift driving lever control that is positioned at steering wheel lower-left side, and self-shifting direction switch and mandatory down one are kept off button DSS and be integrated on combination stalk.
The advantage that the present invention has and good effect.
Intelligent energy-saving loading machine adopts electric-control motor and controlled variable pump, manually select motor light by the mode of operation selector switch being arranged on control panel, heavy duty mode of operation, the power stage of control engine, by load-sensitive hydraulic mechanism according to magnitude of load automatic regulated variable pump delivery under maximum pump discharge, reach complete machine power stream is carried out to reasonable distribution, and by make loader there is larger tractive force when the spading to the distribution of power stream, in the time loading, swing arm and scraper bowl have service speed faster, both saved the energy, improve again operating efficiency.Meanwhile, by the self shifter of controller control electricity liquid manual transmission, guarantee torque-converters in the work of efficient district, had both been simplified operation as far as possible, had improved again operating efficiency and the service behaviour of complete machine.
Superiority of the present invention and technique effect.
1, control engine always works near rated power point, and motor has higher economy and dynamic property.
2, variable pump is according to the automatic Displacement Regulation of load condition, and hydraulic system needs how many how much supply, has avoided high pressurized overflow.
3, automatic gear shifting system, has not only improved drive line efficiency but also simplified operation, has improved loader operating efficiency.
4, distribute by regulating motor and variable pump to carry out power stream, the driving force while both having improved spading, has improved again the rapidity of the work of loading, complete machine good economy performance, and operating efficiency is high.
Brief description of the drawings
Figure l is Intelligent energy-saving loading machine structural representation of the present invention.
Fig. 2 intelligent control function block diagram of the present invention.
In figure, 1, spading mechanism, 2, load sensing hydraulic mechanism, 3, gearshift driving lever, 4, steering wheel, 5, driver's cabin, 6, combination stalk, 7, torque-converters, 8, motor, 9, vehicle frame, 10, wheel, 11, variable pump, 12, electric liquid manual transmission, 13, transmission mechanism, 14, boom cylinder.
Detailed description of the invention
For further understanding content of the present invention, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Consult accompanying drawing 1, Fig. 2.
Embodiment 1.
Intelligent energy-saving loading machine, comprise vehicle frame, actuating unit, transmission mechanism, controlling organization, there is driver's cabin 5 middle part of vehicle frame 9, in a Ce You spading mechanism 1 of driver's cabin 5, opposite side is provided with actuating unit, electric liquid manual transmission 12 is arranged at the bottom of vehicle frame 9, transmission mechanism 13 and steering hydraulic mechanism, vehicle frame 9 is equipped with wheel 10, it is characterized in that: load sensing hydraulic mechanism 2 is equipped with in spading mechanism 1, vehicle frame 9 is equipped with BBG 8 and intelligent controller thereof, intelligent controller connected load sensing hydraulic mechanism 2, self shifter controlling organization, self shifter controlling organization control electricity liquid automatic shifting transmission gear box 12, intelligent controller connects the discharge capacity of control variables pump electromagnetic valve regulated variable pump 11.
Intelligent controller connects BBG 8 underloadings, heavily loaded mode of operation selector, and intelligent controller panel is provided with underloading, heavily loaded mode of operation selector switch.Intelligent controller panel is provided with gearshift mode selection switch, and manual shift pattern is controlled by the gearshift driving lever 3 that is positioned at steering wheel 4 lower-left sides, and self-shifting direction switch and mandatory down one are kept off button DSS and be integrated on combination stalk 6.The boom cylinder 14 of spading mechanism is equipped with pressure sensor, and intelligent controller Bonding pressure sensor judges loader active section of living in by measuring oil cylinder 14 pressure.Transmission mechanism is selected three element torque-converters 7 and front four rear three electric liquid automatic shifting transmission gear boxs 12, taking secondary speed, engine speed as controlling parameter, by intelligent controller, electric liquid automatic shifting transmission gear box 12 is carried out to self shifter control, make torque-converters 7 in efficient state work.
The present invention seeks to realize like this.
Operating characteristic binding engine characteristic curve during according to the different operating mode of loader, determines basic, normal, high three working curves of motor 8, the corresponding a kind of loader operating mode of each working curve.Loader work be divided into gently, two kinds of mode of operations of heavy duty, the different working range of the corresponding motor 8 of every kind of pattern, manually selects light, heavily loaded mode of operation according to operating mode by the mode of operation selector switch being arranged on control panel by driver.
According to the discharge capacity of the automatic regulated variable pump 11 of the different control programs of loader active section of living in, to control its absorbed power.Different operating section is set the different maximum pump discharges of variable pump 11, and maximum pump discharge setting numerical value is determined by loader walking, underloading spading, three kinds of exemplary operation of heavily loaded spading, is divided into large, medium and small three gears.After maximum pump discharge is set, load sensing hydraulic mechanism 2 automatically regulates pump delivery under maximum pump discharge according to magnitude of load.Pressure sensor is equipped with in boom cylinder 14 bottoms, judges loader active section of living in by measuring oil cylinder base pressure.
Transmission system is selected three element torque-converters 7, with front four rear three electric liquid automatic shifting transmission gear boxs 12, taking secondary speed, engine speed as controlling parameter, according to the Shifting of setting, electric liquid automatic shifting transmission gear box 12 is carried out to self shifter control by controller, ensure that torque-converters 7 is operated in the efficient district of regulation as far as possible.Adopt three kinds of gearshift patterns, manual mode (M), automatic 1 pattern (L), and automatic 2 patterns (H).L pattern according to operating mode self shifter, is mainly used in excavation and the loading operation of loader between lower-speed state 1-2 gear; The self shifter between fast state 1-4 gear of H pattern, is mainly used in the long-range walking of loader, and the loading operation of long distance.Manual shift pattern is controlled by the gearshift driving lever 3 that is positioned at steering wheel lower-left side: self-shifting direction switch and mandatory down one are kept off button DSS and be integrated on combination stalk 6; Gearshift mode selection switch is positioned on instrument desk.
Concrete work completes like this:
As shown in Figure 3: before loader work by driver according to operating mode, manually select light, heavily loaded mode of operation by the mode of operation selector switch being arranged on control panel.Underloading mode engine 8 low, in work on two characteristic curves, heavily loaded mode engine is worked on low, high two characteristic curves.(another pattern also can be set for special operation condition, such as road traveling condition is poor---running resistance is large or have the gradient, and now engine operation is on middle and high two characteristic curves.) in the time that travelling, shovel dress material process and climbing adopt relatively high power curve, in the time of deadhead operation, adopt smaller power curve, and avoid motor 8 to be regularly operated on speed governing curve.The oil cylinder base pressure that the pressure sensor that master controller fills according to boom cylinder 14 bottoms in the course of the work detects judges loader active section of living in and load condition, discharge capacity in the middle of using when underloading spading, when heavy duty spading, use small displacement, ensure that loader has larger driving force: in the time of moved arm lifting and scraper bowl upset, use large discharge capacity, ensure operating rate faster.After maximum pump discharge is set, load sensing hydraulic mechanism 2 automatically regulates pump delivery under maximum pump discharge according to magnitude of load.
The gearshift work of this loader completes like this: driver selectes gearshift pattern according to operating habit and operating mode etc. by gearshift mode selection switch: manual mode (M), l pattern (L), and automatic 2 patterns (H) automatically.When manual mode, driver is positioned at gearshift driving lever 3 manual shifts of steering wheel 4 downsides by manipulation, and when automatic mode, gearshift control program, according to current operating mode self shifter, ensures that torque-converters 7 is operated in the efficient district of regulation as far as possible, to reach energy-conservation object.
Claims (5)
1. an Intelligent energy-saving loading machine, comprise vehicle frame, actuating unit, transmission mechanism, controlling organization, there is driver's cabin the middle part of vehicle frame, in a Ce You spading mechanism of driver's cabin, opposite side is provided with actuating unit, electric liquid manual transmission is arranged at the bottom of vehicle frame, transmission mechanism and steering hydraulic mechanism, vehicle frame be equipped with wheel (, it is characterized in that: load sensing hydraulic mechanism is equipped with in spading mechanism, vehicle frame is equipped with electric-control motor and intelligent controller thereof, intelligent controller connected load sensing hydraulic mechanism, self shifter controlling organization, self shifter controlling organization control electricity liquid automatic shifting transmission gear box, intelligent controller connects control variables pump electromagnetic valve regulated variable pump delivery.
2. Intelligent energy-saving loading machine according to claim 1, is characterized in that: intelligent controller connecting engine underloading, heavily loaded mode of operation selector, intelligent controller panel is provided with underloading, heavily loaded mode of operation selector switch.
3. Intelligent energy-saving loading machine according to claim 1, is characterized in that: the boom cylinder of spading mechanism is equipped with pressure sensor, and intelligent controller Bonding pressure sensor judges loader active section of living in by measuring oil cylinder working-pressure.
4. according to the Intelligent energy-saving loading machine described in claim l, it is characterized in that: transmission mechanism is selected torque-converters and electric liquid automatic shifting transmission gear box, taking secondary speed, engine speed as controlling ginseng religion, by intelligent controller, electric liquid automatic shifting transmission gear box is carried out to self shifter control, make torque-converters in efficient state work.
5. according to the Intelligent energy-saving loading machine described in claim l, it is characterized in that: intelligent controller panel is provided with gearshift mode selection switch, manual shift pattern is by the gearshift driving lever control that is positioned at steering wheel lower-left side, and self-shifting direction switch and mandatory down one are kept off button DSS and be integrated on combination stalk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210554449.3A CN103882895A (en) | 2012-12-20 | 2012-12-20 | Intelligent energy-saving loader |
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| CN201210554449.3A CN103882895A (en) | 2012-12-20 | 2012-12-20 | Intelligent energy-saving loader |
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| CN103882895A true CN103882895A (en) | 2014-06-25 |
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| CN201210554449.3A Pending CN103882895A (en) | 2012-12-20 | 2012-12-20 | Intelligent energy-saving loader |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929170A (en) * | 2015-05-27 | 2015-09-23 | 徐工集团工程机械股份有限公司科技分公司 | Movable-arm-lifting energy conservation system for loader |
| CN105971048A (en) * | 2016-06-28 | 2016-09-28 | 徐工集团工程机械股份有限公司科技分公司 | Wheel loader radiator arrangement structure |
| CN110777876A (en) * | 2019-12-03 | 2020-02-11 | 徐工集团工程机械股份有限公司科技分公司 | Work control system and method for electric loader |
-
2012
- 2012-12-20 CN CN201210554449.3A patent/CN103882895A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929170A (en) * | 2015-05-27 | 2015-09-23 | 徐工集团工程机械股份有限公司科技分公司 | Movable-arm-lifting energy conservation system for loader |
| CN104929170B (en) * | 2015-05-27 | 2017-08-25 | 徐工集团工程机械股份有限公司科技分公司 | A kind of loading machine lifts swing arm energy conserving system |
| CN105971048A (en) * | 2016-06-28 | 2016-09-28 | 徐工集团工程机械股份有限公司科技分公司 | Wheel loader radiator arrangement structure |
| CN110777876A (en) * | 2019-12-03 | 2020-02-11 | 徐工集团工程机械股份有限公司科技分公司 | Work control system and method for electric loader |
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Application publication date: 20140625 |